I provided a detailed HVAC system estimate, which included the cost of installing a Carrier Infinity 19VS air conditioner, model 24VNA9, and a Carrier Infinity 98 gas furnace, model 59MN7. The estimate covered all aspects of the installation process, from ductwork modifications and electrical upgrades to the setup of a new Carrier Côr smart thermostat, ensuring the homeowner received a comprehensive breakdown of costs and requirements for a complete system upgrade.